Some Questions on Binding Settings

I need to adjust my Salomon Z10 binding to a slightly smaller boot. They are mounted on a sliding rail on a system ski which makes changing the size easy but I know that DIN settings theoretically change. I doubt I've made enough of a change in size to matter as I've gone from a 310mm length to a 300mm.

I'm not getting real excited with all these variables and the charts look to me to be extremely vague. Lots of wiggle room in these numbers.

I also made sure the change in distance between front/rear is snug enough. I've noticed the tighter the fit between toe/heel the more this mark moves to the rear. From what I understand as long as it is somewhere between the forward thicker mark and the rearward one the tension is appropriate.

Everything looks good to me. You set the DIN release setting according to the chart (it's a good place to start), and the forward pressure is within the required range. That's exactly what I would do.

Only other thing to check is if there is any other adjustment for the toe wings (some do, e.g. vertical adjustment, but I'm not that familiar with your bindings). If there are no other adjustments I would call it a day.

Some of the more paranoid skiers and/or shop owners would have you torque test them too, but the way I look at it is I am going to move from the DIN setting based on release/pre-release performance anyway so I don't really care if a 7 releases at exactly what a 7 is supposed to release at.

Ok... there is no toe height adjustment. It is "automatic" on the Z series bindings. You set the distance between front/rear and check the tension to make sure it is between the marks. You adjust the DIN settings on toe/heel and that is pretty much it. I like simple and I also like that it would be relatively simple to move the position of the boot relative to the ski with minimal effort.

Did the toe piece also move? Where is the center mark on your boot in relation to the center mark on the ski after the change?

It is the same....relative to the marking on the rail. The boot marking is about 2mm forward of what is on the ski. I started with the what the manual said to start with for a 300mm boot. Then I adjusted the rear heel to snug it up to the correct tension.